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ORC Resource Number #5801
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Hooked on Problem Solving
Promising Practice
PROFESSIONAL COMMENTARY

Students use each of the digits 1–9 exactly once to form addition problems consisting of two three-digit addends and a three-digit sum and look for patterns in the solutions. Guiding questions, summary questions, assessment tasks, and extensions are included. Though the site indicates the lesson is targeted at grade 4, ORC reviewers agreed that older students would also enjoy and benefit from the problem-solving activity. (author/sw)

OHIO STANDARDS
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Mathematics Academic Content Standards
Number, Number Sense and Operations Standard
Mathematical Processes Standard
NATIONAL STANDARDS
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Principles and Standards for School Mathematics
Number and Operations Standard
Problem Solving Standard
Reasoning and Proof Standard
RESOURCE TYPE
Instructional Resource
PRACTICE LEVEL
Promising Practice
STANDARDS ALIGNMENT
Grades 3–7
TOPICS
Mathematics --
Numbers and Operations;
Problem Solving;
KEYWORDS
addition
Publisher: Charles A. Dana Center, University of Texas at Austin